Category Archives: Storage

Microsoft's Resilient File System (ReFS)

Microsoft has a new file system designed to increase data integrity, scalability and availability called the Resilient File System (ReFS).  This file system has leveraged many of the NTFS file system goodies and expanded them to make it more scalable and prevent corruptions.  ReFS was released with Server 2012 and at the moment is designed… Continue Reading

Microsoft Storage Spaces

Microsoft Storage Spaces feature used to handle data redundancy, scalability and performance.  Storage Spaces takes a set of Just a Bunch of Disks (JBOD) and pairs them together to allow for; either failures of a disk, gaining the performance of multiple spindles, or gaining the space of multiple disks.  Traditionally this has all been handled… Continue Reading

CASL with Nimble Storage

    I was fortunate enough to get to spend an hour with Dmitriy Sandler from Nimble Storage to see what all the fuss was about with their product and more specifically their Cache Accelerated Sequential Layout (CASL) File System. Hardware Overview Let’s cover some of the basics before we dive into CASL.  The storage array… Continue Reading

Disk Latency Concepts

Hard drives are not the most fun thing to talk about, but it’s important to know some of the concepts when it comes to disk latency.  Disk latency refers to the time delay between a request for data and the return of the data.  It sounds like a simple thing, but this time can be… Continue Reading

HP StoreOnce VSA

HP announced a new virtual storage appliance (VSA) recently at their annual HP Discover conference.  This is a virtual appliance based on the StoreOnce line (formerly known as D2D) of hardware appliances that HP has sold for a long time.  These appliances have the catalyst software which allows for deduplication of all your backup data,… Continue Reading

Synology DS411slim Review

I recently purchased a Synology DS411slim NAS device for my home lab in order to quiet down my rack and start using up less power.  Obviously to accomplish this I would need to fill it up with Solid State drives which have the added benefit of a large number of IOPS 🙂      … Continue Reading

Are you thin or thick? Where at?

I’m often asked about how to provision virtual machine disks.  This almost always comes down to, “Should I use thick or thin disks?” and then “Should I do thin provisioning on the array or on the hypervisor?” So here we go: Thin vs Thick     Thin provisioning: Thin provisioned disks don’t allocate all of… Continue Reading

Virtual Simulators

If you’re an engineer and you’re trying to get more experience with a variety of different storage devices, you might find yourself in a bit of a pickle.  Most customers settle one one or two storage vendors and that’s it.  So if you work for one of these companies you can learn EMC or Netapp,… Continue Reading